20001457 is an odd 8-digits composite number following 20001456
and preceding 20001458 . In scientific notation, it is written as 2.0001457 × 10^7.
The sum of its digits is 19. It has a total of 4 prime factors and 12 positive divisors.
There are 16923816 positive integers (up to 20001457) that are relatively prime to 20001457.
20001457 has 12 divisors, whose sum is 23566080
The reverse of 20001457 is 75410002
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one thousand four hundred fifty-seven
Scientific notation
2.0001457 × 10^7
Engineering notation
2.0001457 × 10^6
Prime Factorization
7 × 7 × 79 × 5167
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2857351
Product of the distinct prime numbers
The prime factorization of 20001457 is 7 × 7 × 79 × 5167.
Since it has a total of 4 prime factors.
3 , 2 , 33 , 68 , 186 , 710 , 1064 , 2745 , 16189 , 57681 , 509617 , 572537 , 7106490 , 3366063 , 26728077 , 30825582 , 47797681 , 469785058 , 9174776174 , 728242647
n×2
40002914
n×3
60004371
n×4
80005828
n×5
100007285
n÷2
10000728.5
n÷3
6667152.3333333
n÷3
5000364.25
n÷5
4000291.4
n2
400058282122849
n3
8.001748527374E+21
n4
1.6004662909509E+29
n5
3.2011657698403E+36
2 √n
4472.2988495851
3 √n
271.44835301021
4 √n
66.875248407651
5 √n
28.854418508647
1 , 7 , 49 , 79 , 553 , 3871 , 5167 , 36169 , 253183 , 408193 , 2857351 , 20001457
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20001456
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20001457 can be divided by 12 positive divisors.
The sum of these divisors (counting 20001457) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100010011001010110001
3
Ternary
1101122011211201
4
Quaternary
1030103022301
5
Quinary
20110021312
6
Senary
1552411201
8
Octal
114231261
10
Decimal
20001457
12
Duodecimal
6846b01
16
Hexadecimal
13132b1
20
Vigesimal
6503ch
36
Base36
bwp81
md5
1aacee3c89b33aef696e707c435c0775
sha1
83fc0a2a18b5b8421d3d88004b917e3eff80c288
sha256
2650c7b0c781b360201096159a721dde5f015e8e7fc68ab3d21abc7dad839b1b
sha512
46eec4e33ca24852bf88a07b6a53a4c94c1ebca2c351f8d1464e35260743e90fa1b1ea7cd91cade2576ba0d076e8eeeef2a2e876f862ddccdaa51704663dad4e
ripemd-160
9a44dd4653f91313e2204cfb30ee0be0f6742dc8
Diameter
40002914
Circumference
125672860.74458
Area
1.2568201601249E+15
Volume
3.3517645852628E+22
Surface area
5.0272806404996E+15
Circumference
125672860.74458
Perimeter
80005828
Area
400058282122849
Diagonal
28286331.756622
Surface area
2400349692737094
Volume
8.001748527374E+21
Space diagonal
34643539.749404
Perimeter
60004371
Area
1.7323031765637E+14
Altitude
17321769.874702
Surface area
1.7323031765637E+14
Volume
9.4301510750928E+20
Height
9428777.2522074